Exhibit 99.1 MBNA MASTER CREDIT CARD TRUST II SERIES 1994-A KEY PERFORMANCE FACTORS October 31, 1997 Expected B Maturity 9/15/99 Blended Coupon 5.8363% Excess Protection Level 3 Month Average 4.89% October, 1997 5.34% September, 1997 4.76% August, 1997 4.59% Cash Yield 18.37% Investor Charge Offs 4.61% Base Rate 8.42% Over 35 Day Delinquency 4.76% Seller's Interest 13.78% Total Payment Rate 14.00% Total Principal Balance $ 31,941,631,051.83 Investor Participation Amount $ 760,000,000.00 Seller Participation Amount $ 4,401,496,533.34